Find flights
Deals
Airlines

£46+ Cheap flights from San Francisco

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SFO — LHR
9 Nov — 16 Nov1
1 adult
1 adult, Economy

What to know about flights from San Francisco

Discover essential information about flights departing from San Francisco, including flight schedules, destinations, airlines operating at the San Francisco airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 10 October 2025.

Cheapest one-way flight

£27

Cheapest round-trip flight

£415

Cheapest airline

Frontier

Most popular destination

London Heathrow (LHR)

Good round-trip deal

£103 or less

Good one-way deal

£51 or less
The cheapest one-way flight from San Francisco is currently to Los Angeles.
Search Deals
The cheapest round-trip flight from San Francisco is currently to London Heathrow.
Search Deals
On average, Frontier currently has the cheapest one-way flight from San Francisco (avg. price of £29).
Search Deals
London Heathrow (LHR) is currently the most popular flight destination from San Francisco (average return price of £292).
Search Deals
Price to beat on a round-trip flight from San Francisco.
Search Deals
Price to beat on a one-way flight from San Francisco.
Search Deals

Find flights from San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco
Explore the most affordable flight options available from San Francisco. Find the lowest fares based on data from user searches, with prices last updated on 10 October 2025.

Tue 18/1107:00SFO - DEN
1 stop11h 06mAlaska Airlines
Tue 2/1218:59DEN - SFO
1 stop17h 04mAlaska Airlines
Deal found 9/10£122
Tue 18/1116:39SFO - DEN
1 stop6h 20mAlaska Airlines
Wed 19/1107:00DEN - SFO
1 stop7h 50mAlaska Airlines
Deal found 10/10£132
Sat 15/1105:30SFO - DEN
Nonstop2h 25mSouthwest
Sun 16/1107:45DEN - SFO
Nonstop2h 45mSouthwest
Deal found 8/10£133
Thu 11/1207:00SFO - DEN
1 stop15h 59mAlaska Airlines
Fri 12/1215:42DEN - SFO
1 stop9h 17mAlaska Airlines
Deal found 8/10£134
Sat 24/107:00SFO - DEN
1 stop15h 59mAlaska Airlines
Fri 30/119:37DEN - SFO
1 stop14h 25mAlaska Airlines
Deal found 8/10£137
Sat 8/1105:30SFO - DEN
Nonstop2h 25mSouthwest
Tue 11/1108:10DEN - SFO
1 stop4h 40mSouthwest
Deal found 8/10£140
Wed 5/1114:26SFO - DEN
2 stops8h 25mAlaska Airlines
Wed 12/1108:20DEN - SFO
1 stop8h 27mAlaska Airlines
Deal found 9/10£141
Tue 2/1207:00SFO - DEN
1 stop11h 24mAlaska Airlines
Sat 6/1212:40DEN - SFO
1 stop6h 23mAlaska Airlines
Deal found 10/10£142
Thu 13/1107:00SFO - DEN
1 stop11h 06mAlaska Airlines
Thu 18/1218:48DEN - SFO
1 stop6h 39mAlaska Airlines
Deal found 9/10£143
Thu 6/1107:00SFO - DEN
1 stop15h 51mAlaska Airlines
Sat 8/1112:49DEN - SFO
2 stops9h 20mAlaska Airlines
Deal found 10/10£143
Tue 3/312:30SFO - DEN
1 stop5h 03mHawaiian Airlines
Wed 4/308:20DEN - SFO
1 stop5h 01mHawaiian Airlines
Deal found 8/10£145
Sat 8/1113:11SFO - DEN
2 stops9h 46mAlaska Airlines
Fri 14/1119:19DEN - SFO
1 stop5h 27mAlaska Airlines
Deal found 9/10£146

Find flights from San Francisco within your budget

 
Find flights departing from San Francisco that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 10 October 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sat 15/11

05:30-08:55

Nonstop2h 25m

Denver Intl

Sun 16/11

07:45-09:30

Nonstop2h 45m

£133

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 5/11

14:26-23:51

2 stops8h 25m

Denver Intl

Thu 13/11

19:19-23:46

1 stop5h 27m

£141

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 3/3

12:30-18:33

1 stop5h 03m

Denver Intl

Wed 4/3

08:20-16:05

1 stop8h 45m

£145

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Fri 5/12

08:00-23:59

2 stops14h 59m

Denver Intl

Wed 10/12

10:05-21:46

1 stop12h 41m

£146

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Sun 9/11

08:00-23:59

2 stops14h 59m

Denver Intl

Fri 14/11

19:19-23:46

1 stop5h 27m

£146

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 23/12

20:50-00:26

Nonstop2h 36m

Denver Intl

Thu 1/1

05:45-07:40

Nonstop2h 55m

£148

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Wed 24/12

05:50-09:15

Nonstop2h 25m

Denver Intl

Mon 12/1

08:35-10:30

Nonstop2h 55m

£148

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Tue 30/12

18:28-22:00

Nonstop2h 32m

Denver Intl

Thu 1/1

05:45-07:40

Nonstop2h 55m

£148

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Thu 6/11

07:00-23:51

1 stop15h 51m

Denver Intl

Sat 8/11

12:49-21:09

2 stops9h 20m

£149

San FranciscoDenver

SFO - DEN

SFODEN

San Francisco

Mon 22/12

19:00-22:40

Nonstop2h 40m

Denver Intl

Tue 30/12

19:40-23:55

1 stop5h 15m

£155

Flights are sorted by cheapest return flights first.

Deals found on 9/10

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from San Francisco

Have a flexible travel schedule? Discover the best time to fly from San Francisco with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Francisco

Get recent, data-driven insights about flights from San Francisco including ideal travel times, pricing trends, and more.

When is the best time to book a flight from San Francisco?

Use this chart to determine the optimal time to book a return flight from San Francisco to Heathrow. Price data was last updated on 3 October 2025.

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco?

Currently, October is the cheapest month in which you can book a flight from San Francisco (average of £382). Flying from San Francisco in June will prove the most costly (average of £607). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from San Francisco?

Use this chart to determine the cheapest time to fly return from San Francisco to Heathrow. Price data was last updated on 5 October 2025.

Those who are seeking the cheapest fare on flights departing from San Francisco would be wise to consider leaving during Sunday at midday when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Monday mornings when fares are usually the most expensive.

Which airlines fly from San Francisco?

Many airlines operate round-trip flights from San Francisco: United Airlines, Virgin Atlantic, British Airways, Lufthansa, Iberia. These airlines fly to the following popular destinations: London.

United Airlines
United Airlines
From £115
Virgin Atlantic
Virgin Atlantic
From £371
Alaska Airlines
Alaska Airlines
From £41
Frontier
Frontier
From £15

What are popular destinations to fly to from San Francisco?

If you’re flying from San Francisco, these routes are more frequently taken by airlines New York (1,558 flights per day), Chicago (1,115 flights per day) and Los Angeles (968 flights per day).

London
London
From £267
New York
New York
From £89
Los Angeles
Los Angeles
From £27
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £28

What is the cheapest place to fly to from San Francisco?

The cheapest city to fly to from San Francisco is Los Angeles, with prices starting at £27. Explore other affordable destinations below.

Los Angeles
Los Angeles
From £27
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £28
Vancouver Intl
Vancouver Intl
From £47
Palm Springs
Palm Springs
From £49

Airline reviews for flights from San Francisco

Get insights into the airlines that provide service from San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from San Francisco. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Check out reviews from past customers who have flown United Airlines, Virgin Atlantic, andIberia from San Francisco to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,973 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,973 reviews
United Airlines
7.4
Good
8,973 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Virgin Atlantic
7.4
Good
665 reviews
United Airlines
7.4
Good
8,973 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,982 reviews
United Airlines
7.4
Good
8,973 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,467 reviews
United Airlines
7.4
Good
8,973 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,449 reviews
United Airlines
7.4
Good
8,973 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Related info for your journey

Access useful and relevant information related to your journey from San Francisco. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 10 October 2025.

  • What are the most popular destinations to fly to from San Francisco?

    This month, the top selected destinations from San Francisco are Boston, Mumbai, Bengaluru. Throughout the year, Mumbai, Bengaluru, Boston are some of the top choices made by users flying from San Francisco.

  • What is the cheapest flight from San Francisco to anywhere?

    Users have flown out of San Francisco for as low as £27 to Los Angeles (prices may vary depending on the airline and departure time). On average, users have booked flights for £456 to fly from San Francisco.

  • What are the cheapest airlines flying from San Francisco to anywhere?

    Over the past few days, we've found that Frontier, Hawaiian Airlines, and Alaska Airlines have the cheapest prices from San Francisco. Frontier flights from San Francisco to Atlanta Hartsfield-Jackson (£15), Hawaiian Airlines flights from San Francisco to Burbank Bob Hope (£36), and Alaska Airlines flights from San Francisco to Honolulu (£41).

  • What is the cheapest premium economy flight from San Francisco?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from San Francisco.
    San Francisco to Boston from £434
    San Francisco to Salt Lake City from £494
    San Francisco to Columbus Airport from £628
    San Francisco to Detroit Metropolitan Wayne County Airport from £636

  • What is the cheapest first class flight from San Francisco?

    If you’re looking for a cheap first-class flight from San Francisco, consider Palm Springs. Prices start at £290 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from San Francisco?

    At the present moment the cheapest month to fly from San Francisco is currently October; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from San Francisco?

    Check out the cheapest flights from San Francisco to embark to:
    Travel from San Francisco to London from £288 round trip
    Travel from San Francisco to Edinburgh from £433 round trip

  • How does Cheapflights help users find flights from San Francisco?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from San Francisco?

    Cheapflights helps you find that perfect flight from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from San Francisco with no change fees?

    Certainly. Search results for flights from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from San Francisco become cheaper?

    Yes! Start tracking prices for flights from San Francisco today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

See more FAQs

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Francisco?

Cheapflights helps you find that perfect flight from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Francisco with no change fees?

Certainly. Search results for flights from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco become cheaper?

Yes! Start tracking prices for flights from San Francisco today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.